Control system for communication switching systems



Oct. V25, 1966' K. s. DUNLAP ETAL CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS 72 Sheets-Sheet l Filed July 16, 1963 B C/@md ATTORNEY mom,

0d. 25. 1966l K. s. DUNLAP ETAL.

CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS 72 Sheets-Sheet 2 Filed July 16, 1965 Oct. 25, 1966 K. s. DUNLAP ETAL 3,281,539

CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS Filed July 16, 1965 72 Sheets-Sheet 5 Oct. 2]"5, 1966 K. s. DUNLAP ETAL CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS 72 Sheets-Sheet 4 Filed July 16, 1963 KH 5 WW 0 N w v @Y In 6 4 HRM E RQ WMF l 0 mw, .a K o -7 w 0L u-, w 5 .J 7 R M w H .n 4 0 l 4 f f M w u l 4 E 4 H C M K 4. 2 G 0 D H |r|| W M 0 W DI" \4 l l. m m ow\ G M E m w M N W/ L. 7 7 E T I N Dn S 0 0 5 nn M n 1 U Nm m l0 0/5 M 0 w J P 0 M CE F 9 4 f E U NM G4 1:11.., m H uA N L JR M LLLLL -l z C o 7 Mw w nu w 0-7 n u: C Rf] 5 "Il, 4 LT G Q II\JH I f RM R 4 1111 L Ms m 111mm W C @2-1llll44 2:3 3 I 6M m J q- ,-1- :LE lllrUlL L 4 Oct. 25, 1966r K s, DUNLAP ETAL 3,281,539

CONTROL SYSTEM FOR COMMUNICATION swITcHING SYSTEMS Filed July 16, 1963 72 Sheets-Sheet 5 rJo- TJEEE soo s a f 7 l #472 fI-l ro OTHERI l l JU/vcToR j I FRAMES To OTHER l Ju/vcroR ER MES l l i o/ JU/vcT-OIR FRAME i I I 57er* I I [502 l 563 l 462 I I I L//vE Ju/vcToR l -T c/Rcu/r! GROUP Oct. 25, 1966 K, s. DUNLAP ETAL 3,281,539

CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS Oct. 25, 1966 K. s. DUNLAP ETAL CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS Filed July 16, 1963 72 Sheets-Sheet 8 f-/TO OTHER TRUNK SWITCH FRAMES TRUNK RAME /809 800 TO OTHER TRUNK FRAMES OC- 25, 1956 K. s. DUNLAP ETAL 3,281,539

CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS Filed July 16, 1965 72 SheeS--SheefI 9 SEE F7C-2 l TO OTHER TO OTHER TRUNK FRAMES MDF OFF/CES l /6 :a4 aos 907 l c/RcU/rs L 1 0 1 l fg/0 l To l OPERATOR @o7 Erc. l

MISCELLANEOUS TRUNK FRAME /90/ M/scELLA NEOc/s TRU/wf c/Rcu/ I GROUP /-POLAR Y CABLE l 902 2047 if-/Qofx 9o: 046A I Oct. Z5, 1966 K. s. DUNLAP ETAL 3,281,539

CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS Filed July 16, 1963 72 Sheets-Sheet 12 8 .9 P200/l 2 RIGHT LINE .2O/F

l W26 `l N28 L, R/CHT L/NE EXECUT/ON /226 DIAGNOSTIC TEST f/m l BUFFER CONTROL "'iml c/RcU/T CONTROL -ACCESS I foil L LSA.; RRSP \R/GHT L /NE /2/4 web); 14204 /aaa BUS SELECTOR i l /2/6 PULSE SOURCE -/2/J l L/NE VLmLrm-B Sw/TCH FRAME VRS/w aO/o/ \COMMAN0 BUS O )eo/O \COMMAND BUS \SCANNER RESPONSE BUS o \ao2o \SCANNER RESPONSE \ENABLE .e vER/Fy CABLE \O6o i o/ACNOSr/C BUS NC \o/AONOSr/C CABLE \Bo7o \o/ACNOST/C Bus So Oct. 25, 1966 K. s. DUNLAP ETAL 3,281,539

CONTROL SYSTEM FOR COMMUNICATION SWITCHNG SYSTEMS Filed July 16, 1963 '72 Sheets-Sheet 13 I I l l RJBC /306 l l 1 i z i 1 U90 Jas RJBs /380 l l ,-4353 I f 4354 l l LJEVC RJEI/C T l I l l T l l l i i l /309 l Lil ..1 L l v J ano EVcR BR/ COMMA/v0 Bus 0 \2o/0 COMMAND BUS wma/105276 aus NC Oct. 25, 1966 K. s. DUNLAP ETAL.

CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS '72 Sheets-Sheet 14 I I s OCTAL GR/D 420 LOWER NETWORK Filed July 16, 1965 Oct. 25, 1966 K. s. DUNLAP ETAL 3,281,539

CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS '72 Sheets-Sheet l5 Filed July 16, 1963 \n/AGN05T/c BUS SD Oct. 25, 1966b K. s. DUNLAP ETAL CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS '72 Sheets-Sheet 17 Filed July 16, 1963 Oct. 25, 1966l K'. s. DUNLAP ETAL CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS '72 Sheets-Sheet 18 Filed July 16, 1963 2046 Afl I '72 Sheets-Sheet 19 V903 SIGNAL DIST.

K. S. DUNLAP ETAL CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS M/SC. TRUNK MISC- TRUNK SCANNER 904 l f Oct. 25, 1966' Filed July 16, 1965 Oct. 25, 1966 K, s. DUNLAP ETAL 3,281,539

CONTROL SYSTEM FOR COMMUNICATION SWITCHING SYSTEMS Filed July 16, 1963 72 Sheets-Sham'I 2O CENTRAL PULSE O/STR/L/TOR F/G. 20 V-"w' TRANSLATOR CENTRAL PROCESSOR 030 L I 5 mmmlm Z0. mwlmimdum 203/ OSSTMEO 9 UTIO mi2/056' l I l I' A A 20/0 2047 j "l .sl-POLAR 12032 CABLE CALL P... S/CNAL/NC -l CAELE ose I 2: MASTER v RECE/ VER SCANNER C/RCU/T /aoaa TELETVPE I RECE/l/ER UN/r l C/RCL//T ,M20/0 gZ034 064 PROGRAM 2 RECE/VER STORE C/RCU/T CARD wR/TER 0/0 n/ZOSS AMA #20465 RECE/VER TAPE C/RCU/T UN/T COMMANO BUS o N COMMAND aus geo/0 SCANNER RESPONSE BUS o 020 SCANNER RESPONSE BUS @ENABLE a VER/Py CABLE 2060 -O/AcNOST/C aus NC \O/ACNOST/C CABLE 07o OSO #O/ACNOST/C BUS SO 

1. A COMMUNICATION SWITCHING SYSTEM COMPRISING A PLURALITY OF AUTONOMOUS SYSTEM UNITS, EACH TYPE FOR PERFORMING A DIFFERENT SWITCHING AND SUPERVISORY SYSTEM FUNCTION; A CENTRAL CONTROL ARRANGEMENT FOR DETERMINING AND GENERATING SYSTEM COMMANDS AT A FIRST MAXIMUM CYCLIC RATE; A PLURALITY OF CONTROL MEANS EACH RESPONSIVE TO SAID SYSTEM COMMANDS FOR SELECTIVELY CONTROLLING A DISCRETE ONE OF SAID SYSTEM UNITS AT A SECOND MAXIMUM CYCLIC RATE; A FIRST COMMAND TRANSMISSION BUS ARRANGEMENT CONNECTING SAID CENTRAL CONTROL ARRANGEMENT WITH ALL SAID CONTROL MEANS FOR TRANSMITTING EACH SAID SYSTEM COMMAND TRANSMITTED THEREON FROM SAID CENTRAL CONTROL ARRANGEMENT TO ALL SAID CONTROL MEANS; A SECOND COMMAND TRANSMISSION BUS ARRANGEMENT CONNECTING SAID CENTRAL CONTROL ARRAGNEMENT WITH ALL SAID CONTROL MEANS FOR TRANSMITTING EACH SAID SYSTEM COMMAND TRANSMITTED THEREON FROM SAID CENTRAL CONTROL ARRANGEMENT TO ALL SAID CONTROL MEANS; CENTRAL SIGNALING MEANS FOR SELECTIVELY GENERATING ENABLE SIGNALS DISCRETELY DEFINING EACH OF SAID CONTROL MEANS AND FURTHER DISCRETELY DEFINING EACH OF SAID COMMAND TRANSMISSION BUS ARRANGEMENT A PLURALITY OF SINGLA TRANSMISSION MEANS EACH DISCRETELY CONNECTING SAID CENTRAL SIGNALING MEANS WITH ONE OF SAID CONTROL MEANS; SAID CENTRAL SIGNALING MEANS CONTROLLABLE BY SAID CENTRAL CONTROL ARRANGEMENT TO GENERATE AN ENABLE SIGNAL DEFINING A SELECTED CONTROL MEANS AND A SELECTED COMMAND TRANSMISSION BUS ARRANGEMENT, SAID ENABLE SIGNAL IN TIME ASSOCIATION WITH A PARTICULAR SYSTEM COMMAND TRANSMITTED FROM SAID CENTRAL CONTROL ARRANGEMENT VIA SAID SELECTED COMMAND TRANSMISSION BUS ARRANGEMENT; ENABLE CIRCUIT MEANS IN EACH OF SAID CONTROL MEANS CONNECTED TO SAID DISCRETE SIGNAL TRANSMISSION MEANS; AND SAID ENABLE CIRCUIT MEANS OF SAID SELECTED CONTROL MEANS RESPONSIVE TO SAID ENABLE SIGNAL TO INITIATE ACCEPTANCE OF SAID PARTICULR SYSTEM COMMAND FROM SAID SELECTED COMMAND TRANSMISSION BUS ARRANGEMENT BY SAID SELECTED CONTROL MEANS. 